Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters

Detalhes bibliográficos
Autor(a) principal: Subacius,Sandra Maria Rodrigues
Data de Publicação: 2002
Outros Autores: Guimarães,Romeu Cardoso
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Genetics and Molecular Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000300006
Resumo: Evolution of metazoan 5S rRNA sequences was analyzed through base composition and types, location and frequency of clustered bases. Characters from sequences of protostomes did not show regular trends as compared with paleontology dating or organism complexity. Trends of increasing G and C, stronger in G clusters, and decreasing A and U, were detected in deuterostomes, in parallel with evolution of complexity. The multifunctional domain 71-104 was highlighted among conserved stretches. Clusters of C were typical of helices. Those of G were longer, extending from helices into loops or related to bulges, which is suggestive of functional significance. Deuterostomian trends were installed early in the lineage and reached full development in aquatic organisms, not increasing further after reptiles. It can be suggested that ribosomal RNA structures participated in deuterostomian high regulatory complexity, either specifically or as part of the widespread processes of chromosomal regionalization.
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spelling Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clustersribosomal RNAevolutionrepetitive sitesdeuterostomesprotostomesEvolution of metazoan 5S rRNA sequences was analyzed through base composition and types, location and frequency of clustered bases. Characters from sequences of protostomes did not show regular trends as compared with paleontology dating or organism complexity. Trends of increasing G and C, stronger in G clusters, and decreasing A and U, were detected in deuterostomes, in parallel with evolution of complexity. The multifunctional domain 71-104 was highlighted among conserved stretches. Clusters of C were typical of helices. Those of G were longer, extending from helices into loops or related to bulges, which is suggestive of functional significance. Deuterostomian trends were installed early in the lineage and reached full development in aquatic organisms, not increasing further after reptiles. It can be suggested that ribosomal RNA structures participated in deuterostomian high regulatory complexity, either specifically or as part of the widespread processes of chromosomal regionalization.Sociedade Brasileira de Genética2002-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000300006Genetics and Molecular Biology v.25 n.3 2002reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47572002000300006info:eu-repo/semantics/openAccessSubacius,Sandra Maria RodriguesGuimarães,Romeu Cardosoeng2002-12-06T00:00:00Zoai:scielo:S1415-47572002000300006Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2002-12-06T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false
dc.title.none.fl_str_mv Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters
title Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters
spellingShingle Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters
Subacius,Sandra Maria Rodrigues
ribosomal RNA
evolution
repetitive sites
deuterostomes
protostomes
title_short Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters
title_full Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters
title_fullStr Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters
title_full_unstemmed Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters
title_sort Trends in evolution of 5S rRNA of deuterostomes: bases and homogeneous clusters
author Subacius,Sandra Maria Rodrigues
author_facet Subacius,Sandra Maria Rodrigues
Guimarães,Romeu Cardoso
author_role author
author2 Guimarães,Romeu Cardoso
author2_role author
dc.contributor.author.fl_str_mv Subacius,Sandra Maria Rodrigues
Guimarães,Romeu Cardoso
dc.subject.por.fl_str_mv ribosomal RNA
evolution
repetitive sites
deuterostomes
protostomes
topic ribosomal RNA
evolution
repetitive sites
deuterostomes
protostomes
description Evolution of metazoan 5S rRNA sequences was analyzed through base composition and types, location and frequency of clustered bases. Characters from sequences of protostomes did not show regular trends as compared with paleontology dating or organism complexity. Trends of increasing G and C, stronger in G clusters, and decreasing A and U, were detected in deuterostomes, in parallel with evolution of complexity. The multifunctional domain 71-104 was highlighted among conserved stretches. Clusters of C were typical of helices. Those of G were longer, extending from helices into loops or related to bulges, which is suggestive of functional significance. Deuterostomian trends were installed early in the lineage and reached full development in aquatic organisms, not increasing further after reptiles. It can be suggested that ribosomal RNA structures participated in deuterostomian high regulatory complexity, either specifically or as part of the widespread processes of chromosomal regionalization.
publishDate 2002
dc.date.none.fl_str_mv 2002-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000300006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000300006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1415-47572002000300006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Genética
publisher.none.fl_str_mv Sociedade Brasileira de Genética
dc.source.none.fl_str_mv Genetics and Molecular Biology v.25 n.3 2002
reponame:Genetics and Molecular Biology
instname:Sociedade Brasileira de Genética (SBG)
instacron:SBG
instname_str Sociedade Brasileira de Genética (SBG)
instacron_str SBG
institution SBG
reponame_str Genetics and Molecular Biology
collection Genetics and Molecular Biology
repository.name.fl_str_mv Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)
repository.mail.fl_str_mv ||editor@gmb.org.br
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